Want to see some really amazing model engines check out this guys site, I just came across it when I went searching for some of the Radial variants people have built using Cox TD cylinders now that is really evil finger chopping malevalence.
quite amazing what people have made over the years.

I remember those Cox engines Zun. I had an 049 glow engine, wish I could remember what make it was. I also had an Enya 15 and a Merco 35, both with throttle controls. The Enya was bought secondhand and never ran that well. The Merco was crude but actually ran really well. I think the Enya is still in the loft at my parent's house fitted into a control liner.